127683-04-9 Methyl 2-methyl-4-(2-benzyloxyphenyl)-5-oxo-1,4,5,7-tetrahydrothieno(3,4-b)pyridine-3-carboxylate RS 30026 RS-30026 Thieno(3,4-b)pyridine-3-carboxylic acid, 1,4,5,7-tetrahydro-2-methyl-5-oxo-4-(2-(phenylmethoxy)phenyl)-, methyl ester, (+-)-